Question How to create a colored background behind specific text

I have this UI Toolkit text in my game and I would love for some text to have a red background, like it is marked. After searching I found <mark> but this does not seem to work. Even with richtext enabled. Is this something that can be achieved within UI Toolkit?



Thank you!

 

I am on Unity 2022.3 and your color code does seem to work, I first used this color code: #00000000 which was white in TMPro. Thank you so much!

 

Colored background for parts of the text has been a basic feature that has been asked for years but I think it's still not available. The mark tag is not for background color, it's for highlighting text so it appears above the text instead of below. In your case, I think your color code is wrong because you set alpha to zero so it's not visible. Try with the one in the documentation "#ffff00aa".
If you're not satisfied with the highlighting and you require colored background, there is a hack to make it work in this thread : https://forum.unity.com/threads/text-background-color-on-some-letters.454491/

 

Thanks I noticed the color being in front aswell. So I opted to calculate the line count and create "background" elements behind the text to giv the effect of markings